National Semiconductor LMV761, LMV762 Technical data

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LMV761/LMV762
Low Voltage, Precision Comparator with Push-Pull
Output

LMV761/LMV762 Low Voltage, Precision Comparator with Push-Pull Output

July 2002

General Description

The LMV761/762 are precision comparators intended for
applications requiring low noise and low input offset voltage.
The LV761 single has a shutdown pin that can be used to
disable the device and reduce the supply current. The
LMV761 is available in a space saving SOT23-6 or SOIC−8
package. The LMV762 dual is available in SOIC−8 or
MSOP-8 package.

They feature a CMOS input and Push-Pull output stage. The
Push-Pull output stage eliminates the need for an external
pull-up resistor.

The LMV761/762 are designed to meet the demands of
small size, low power and high performance required by
portable and battery operated electronics.

The input offset voltage has a typical value of 200µV at room
temp and a 1mV limit over temp.

Features

(VS=5V,TA= 25˚C, Typical values unless specified)

n Input offset voltage 0.2mV
n Input offset voltage (max over temp) 1mV
n Input bias current 0.2pA
n Propagation delay (OD = 50mV) 120 nsec
n Low supply current 300µA
n CMRR 100dB
n PSRR 110dB
n Extended Temperature Range −40˚C to 125˚C
n Push-pull output
n Ideal for 2.7V and 5V single supply applications
n Available in space-saving packages:

6-Pin SOT23 (single w/shutdown)
8-Pin SOIC (single w/shutdown)
8-Pin SOIC/MSOP (dual without shutdown)

Applications

n Portable and battery-powered systems
n Scanners
n Set top boxes
n High speed differential line receiver
n Window comparators
n Zero-crossing detectors
n High speed sampling circuits

Typical Circuit

20037032

Threshold Detector

© 2002 National Semiconductor Corporation DS200370 www.national.com

V

vs. V

OS

CC

20037010

Absolute Maximum Ratings (Note 1)

If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.

ESD Tolerance (Note 2)

LMV761/LMV762

Human Body Model 2000V

Machine Model 200V

+–V−

Supply Voltage (V

) 5.5V

Differential Input Voltage Supply Voltage

Voltage between any two pins Supply Voltage

Output Short Circuit to V

+-V−

Soldering Information

Wave Soldering (10 sec.) 260˚C (Lead Temp)

Junction Temperature 150˚C

Storage Temperature Range −65˚C to 150˚C

Operating Ratings

Supply Voltage (V+–V−) 2.7V to 5.0V

Temperature Range −40˚C to +125˚C

Package Thermal Resistance (Note 4)

SOT23-6 265˚C/W

SOIC-8 190˚C/W

MSOP-8 235˚C/W

Infrared or Convection (20 sec.) 235˚C

2.7V Electrical Characteristics

Unless otherwise specified, all limited guaranteed for TJ= 25˚C, VCM=V+/2, V+= 2.7V, V−=0V−. Boldface limits apply at the
temperature extremes. (Note 5)

Symbol Parameter Condition

V

OS

I

B

I

OS

CMRR Common Mode Rejection

Input Offset Voltage 0.2 1.0 mV

Input Bias Current (Note 8) 0.2 50 pA

Input Offset Current (Note 8) .001 5 pA

<

0V

<

V

VCC- 1.3V 80 100 dB

CM

Ratio

+

PSRR Power Supply Rejection Ratio V

CMVR Input Common Mode Voltage

= 2.7V to 5V 80 110 dB

>

CMRR

50dB −0.3

Range

V

O

I

SC

I

S

Output Swing High IL= 2mA, VID= 200mV V+– 0.35 V+– 0.1 V

Output Swing Low I

Output Short Circuit Current
(Note 3)

= −2mA, VID= −200mV 90 250 mV

L

Sourcing, VO= 1.35V, VID= 200mV 6.0 20

Sinking, V

= 1.35V, VID= −200mV 6.0 15

O

Supply Current

LMV762 (Both Comparators) 550 1400

I

OUT

LEAKAGE

I

S LEAKAGE

t

PD

t

SKEW

t

r

t

f

t

on

Output Leakage I@Shutdown SD = GND, VO= 2.7V 0.20 µA

Supply Leakage I@Shutdown SD = GND, VCC= 2.7V 0.20 2 µA

Propagation Delay

= 5.1kΩ

R

L

= 50pF

C

L

Overdrive = 5mV 270

Overdrive = 50mV 120

Propagation Delay Skew 5 ns

Output Rise Time 10% to 90% 1.7 ns

Output Fall Time 90% to 10% 1.8 ns

Turn On Time From Shutdown 6 µs

Min

(Note 7)

Typ

(Note 6)

Max

(Note 7) Units

1.5

V

mA

µALMV761 (Single Comparator) 275 700

nsOverdrive = 10mV 205

5.0V Electrical Characteristics

Unless otherwise specified, all limited guaranteed for TJ= 25˚C, VCM=V+/2, V+= 5.0V, V−=0V−. Boldface limits apply at the
temperature extremes.

Symbol Parameter Condition

V

OS

I

B

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Input Offset Voltage 0.2 1.0 mV

Input Bias Current (Note 8) 0.2 50 pA

Min

(Note 7)

Typ

(Note 6)

Max

(Note 7) Units

5.0V Electrical Characteristics (Continued)

Unless otherwise specified, all limited guaranteed for TJ= 25˚C, VCM=V+/2, V+= 5.0V, V−=0V−. Boldface limits apply at the
temperature extremes.

Min

Symbol Parameter Condition

I

OS

CMRR Common Mode Rejection

Input Offset Current (Note 8) 0.01 5 pA

<

0V

<

V

VCC- 1.3V 80 100 dB

CM

(Note 7)

Ratio

PSRR Power Supply Rejection Ratio V+= 2.7V to 5V 80 110 dB

CMVR Input Common Mode Voltage

CMRR

>

50dB −.3

Range

V

O

I

SC

I

S

Output Swing High IL= 4mA, VID= 200mV V+– 0.35 V+– 0.1 V

Output Swing Low I

Output Short Circuit Current
(Note 3)

= −4mA, VID= −200mV 120 250 mV

L

Sourcing, VO= 2.5V, VID= 200mV 6.0 60

Sinking, V

= 2.5V, VID= −200mV 6.0 40

O

Supply Current

LMV762 (Both Comparators) 450 1400

I

OUT

LEAKAGE

I

S LEAKAGE

t

PD

t

SKEW

t

r

t

f

t

on

Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is
intended to be functional, but specific performance is not guaranteed. For guaranteed specifications and the test condition, see the Electrical Characteristics.

Note 2: Unless otherwise specified human body model is 1.5kΩ in series with 100pF. Machine model 200pF.

Note 3: Electrical Table values apply only for factory testing conditions at the temperature indicated. Factory testing conditions result in very limited self-heating of

the device such that T
See Application section for information on temperature de-rating of this device. Absolute Maximum Rating indicate junction temperature limits beyond which the
device may be permanently degraded, either mechanically or electrically.

Note 4: The maximum power dissipation is a function of T
P

=(T

D

Note 5: Maximum temperature guarantee range is −40˚C to 125˚C.

Note 6: Typical values represent the most likely parametric norm.

Note 7: All limits are guaranteed by testing or statistical analysis.

Note 8: Guaranteed by design

Output Leakage I@Shutdown SD = GND, VO= 5.0V 0.20 µA

Supply Leakage I@Shutdown SD = GND, VCC= 5.0V 0.20 2 µA

Propagation Delay

= 5.1kΩ

R

L

= 50pF

C

L

Overdrive = 5mV 225

Overdrive = 50mV 120

Propagation Delay Skew 5 ns

Output Rise Time 10% to 90% 1.7 ns

Output Fall Time 90% to 10% 1.5 ns

Turn On Time from Shutdown 4 µs

. No guarantee of parametric performance is indicated in the electrical tables under conditions of internal self-heating where T

J=TA

), θJA, and TA. The maximum allowable power dissipation at any ambient temperature is

J(MAX)-TA)θJA

. All numbers apply for packages soldered directly into a PC board.

J(MAX

Typ

(Note 6)

Max

(Note 7) Units

3.8

mA

µALMV761 (Single Comparator) 225 700

nsOverdrive = 10mV 190

>

J

LMV761/LMV762

V

TA.

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